| Swedish Open (WTP) 2019, XD, Qualification | 10/02 16:20 | - | Harimoto/Hayata v Tsuboi G / Takahashi B | L | 3-1 | |
| Swedish Open (WTP) 2019, XD, Qualification | 10/02 08:10 | - | Pletea / Diaconu v Tsuboi G / Takahashi B | W | 0-3 | |
| Czech Open XD | 08/23 12:40 | 2 | Mizutani J / Ito M v Tsuboi G / Takahashi B | L | 3-0 | |
| Czech Open XD | 08/23 08:00 | 3 | Tsuboi G / Takahashi B v Qiu/Mittelham | W | 3-0 | |
| Czech Open XD | 08/22 08:40 | 4 | Szudi A / Pergel S v Tsuboi G / Takahashi B | W | 2-3 | |
| Czech Open XD | 08/21 18:00 | - | Nuytinck C / Lung L v Tsuboi G / Takahashi B | - | Walkover | |
| Czech Open XD | 08/21 07:30 | - | Tregler T / Cechova D v Tsuboi G / Takahashi B | D |
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| Pan American Games XD | 08/06 01:00 | - | Wang/Zhang v Tsuboi G / Takahashi B | L | 4-1 | |
| Pan American Games XD | 08/05 15:00 | - | Tsuboi G / Takahashi B v Afanador B / Diaz A | W | 4-1 | |
| Pan American Games XD | 08/04 23:00 | - | Tsuboi G / Takahashi B v Madrid/Silva | W | 4-1 | |
| Pan American Games XD | 08/04 16:00 | - | Tsuboi G / Takahashi B v Navas M / Nino N | W | 4-2 | |
| World Championship XD | 04/22 16:00 | 6 | Falck M / Ekholm M v Tsuboi G / Takahashi B | L | 4-1 |